Thank you, Helen, for this interesting class.

I now have some useful haltone patterns to texture my projects.

 

Please find below my results

The polka dots tile

The sharpened blue dots tile

The light blue tile

 

 

A close-up of the pink halftone sharpened twice

The final pattern with the outlined shape.

Unfortunately the pink halftone pattern is barely visible on this image ...

 

My very old PS doesn't allow me to do the last lesson, so I played with the first dots pattern and here is what I ended with.

The tile

which gives this pattern.

I'm pretty happy with it :-)